You have a much less potent version of scp 999 abilities. Instead of making people instantly happy, people being around you get happier at a rate of 1% a minute maxing out at 70% (which is still quite high) and you will smell faintly of their favorite smell.

For example f someones favorite smell is pizza, you will smell slightly like grease and pepperoni.

You can't control this power and it doesn't work on you, so you can still get sad. And you will smell the scent you let off, whether you like it or not.

EDIT: I forgot to mention this, but nobody knows of your power, even you. People's bodies just start to produce dopamine when near you.

ANOTHER EDIT: people have to be within talking distance of you for it to work